<ul class="time-line-container">
    <li class="time-line-item" ng-repeat="item in vm.timeLineData">
        <div class="time-line-item-tail"></div>
        <div class="time-line-item-node" ng-class="{active:item.value == vm.activeNode}"></div>
        <div class="time-line-item-wrapper" ng-click="vm.selected(item)">{{item.key}}</div>
    </li>
</ul>